import ( "os" "sync/atomic" "time" "github.com/segmentio/kafka-go/snappy" )
"timestamp_ns": 1732145678123456789, "core_id": 3, "pid_tid": "1337/1402", "domain": "CPU", "metric": "cycles_stalled_backend", "value": 42000, "stack_id": "0x7fffdeadbeef" offline cross profiler
The developer compiles the source code using compiler-driven tracking flags. For instance, using the GNU Compiler Collection (GCC) , adding flags like -fprofile-arcs and -ftest-coverage instructs the compiler to insert counter increments at every code branch point. 2. Runtime Collection import ( "os" "sync/atomic" "time" "github